Measurement of $W^+W^-$ production in association with one jet in proton--proton collisions at $\sqrt{s} =8$ TeV with the ATLAS detector

G. Aad; M. Alstaty; M. Barbero; A. Calandri; T.P. Calvet; Y. Coadou; C. Diaconu; F. Djama; V. Ellajosyula; L. Feligioni; A. Hadef; G.D. Hallewell; F. Hubaut; S.J. Kahn; E. B. F. G. Knoops; E. Le Guirriec; J. Liu; K. Liu; D. Madaffari; E. Monnier; S. Muanza; E. Nagy; P. Pralavorio; Y. Rodina; A. Rozanov; M. Talby; T. Theveneaux-Pelzer; R.E. Ticse Torres; S. Tisserant; J. Toth; F. Touchard; L. Vacavant; Chen Wang; D. Boumediene; E. Busato; D. Calvet; S. Calvet; A.R. Chomont; J. Donini; S. Ganguly; Ph. Gris; R. Madar; D. Pallin; S.M. Romano Saez; C. Santoni; D. Simon; F. Vazeille; N. Berger; M. Delmastro; L. Di Ciaccio; S. Elles; K. Grevtsov; T. Guillemin; T. Hryn’ova; S. Jézéquel; I. Koletsou; R. Lafaye; Jérémy Lévêque; P. Mastrandea; E. Sauvan; B.H. Smart; T. Todorov; I. Wingerter-Seez; E. Yatsenko; S. Albrand; S. Berlendis; A. Bethani; C. Camincher; J. Collot; S. Crépé-Renaudin; P.A. Delsart; C. Gabaldon; M.H. Genest; P.O.J. Gradin; J.Y. Hostachy; F. Ledroit-Guillon; A. Lleres; A. Lucotte; F. Malek; E. Petit; J. Stark; B. Trocmé; M. Wu; G. Rahal; M.K. Ayoub; A. Bassalat; S. Binet; C. Becot; C. Bourdarios; J.B. de Vivie De Regie; D. Delgove; L. Duflot; M. Escalier; L. Fayard; D. Fournier; E.L. Gkougkousis; J.-F. Grivaz; F. Hariri; S. Henrot-Versille; J. Hrivnac; L. Iconomidou-Fayard; M. Kado; A. Lounis; N. Makovec; N. Morange; C. Nellist; P. Petroff; L. Poggioli; P. Puzo; A. Renaud; G. Rybkin; D. Rousseau; A.C. Schaffer; L. Serin; E. Scifo; S. Simion; R. Tanaka; D. Zerwas; Zhongkai Zhang; Y. Zhao

Measurement of $W^+W^-$ production in association with one jet in proton--proton collisions at $\sqrt{s} =8$ TeV with the ATLAS detector

G. Aad ¹ M. Alstaty ¹ M. Barbero ¹ A. Calandri ¹ T.P. Calvet ¹ Y. Coadou ¹ C. Diaconu ¹ F. Djama ¹ V. Ellajosyula ¹ L. Feligioni ¹ A. Hadef ¹ G.D. Hallewell ¹ F. Hubaut ¹ S.J. Kahn ¹ E. B. F. G. Knoops ¹ E. Le Guirriec ¹ J. Liu ¹ K. Liu ¹ D. Madaffari ¹ E. Monnier ¹ S. Muanza ¹ E. Nagy ¹ P. Pralavorio ¹ Y. Rodina ¹ A. Rozanov ¹ M. Talby ¹ T. Theveneaux-Pelzer ¹ R.E. Ticse Torres ¹ S. Tisserant ¹ J. Toth ¹ F. Touchard ¹ L. Vacavant ¹ Chen Wang ¹ D. Boumediene ² E. Busato ² D. Calvet ² S. Calvet ² A.R. Chomont ² J. Donini ² S. Ganguly ² Ph. Gris ² R. Madar ² D. Pallin ² S.M. Romano Saez ² C. Santoni ² D. Simon ² F. Vazeille ² N. Berger ³ M. Delmastro ³ L. Di Ciaccio ³ S. Elles ³ K. Grevtsov ³ T. Guillemin ³ T. Hryn’ova ³ S. Jézéquel ³ I. Koletsou ³ R. Lafaye ³ Jérémy Lévêque ³ P. Mastrandea ³ E. Sauvan ³ B.H. Smart ³ T. Todorov ³ I. Wingerter-Seez ³ E. Yatsenko ³ S. Albrand ⁴ S. Berlendis ⁴ A. Bethani ⁴ C. Camincher ⁴ J. Collot ⁴ S. Crépé-Renaudin ⁴ P.A. Delsart ⁴ C. Gabaldon ⁴ M.H. Genest ⁴ P.O.J. Gradin ⁴ J.Y. Hostachy ⁴ F. Ledroit-Guillon ⁴ A. Lleres ⁴ A. Lucotte ⁴ F. Malek ⁴ E. Petit ⁴ J. Stark ⁴ B. Trocmé ⁴ M. Wu ⁴ G. Rahal ⁵ M.K. Ayoub ⁶ A. Bassalat ⁶ S. Binet ² C. Becot C. Bourdarios ⁶ J.B. de Vivie De Regie ⁶ D. Delgove ⁶ L. Duflot M. Escalier ⁶ L. Fayard ⁶ D. Fournier ⁶ E.L. Gkougkousis ⁶ J.-F. Grivaz ⁶ F. Hariri ⁶ S. Henrot-Versille ⁶ J. Hrivnac ⁶ L. Iconomidou-Fayard ⁶ M. Kado ⁶ A. Lounis ⁶ N. Makovec ⁶ N. Morange ⁶ C. Nellist ⁶ P. Petroff ⁶ L. Poggioli ⁶ P. Puzo ⁶ A. Renaud ⁶ G. Rybkin ⁶ D. Rousseau ⁶ A.C. Schaffer ⁶ L. Serin ⁶ E. Scifo ⁶ S. Simion ⁶ R. Tanaka ⁶ D. Zerwas ⁶ Zhongkai Zhang ⁶ Y. Zhao ⁶

1 CPPM - Centre de Physique des Particules de Marseille

2 LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand

3 LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules - Laboratoire d'Annecy de Physique des Particules

4 LPSC - Laboratoire de Physique Subatomique et de Cosmologie

5 CC-IN2P3 - Centre de Calcul de l'IN2P3

6 LAL - Laboratoire de l'Accélérateur Linéaire

Abstract : The production of $W$ boson pairs in association with one jet in $pp$ collisions at $\sqrt{s} = 8$ TeV is studied using data corresponding to an integrated luminosity of 20.3 fb$^{-1}$ collected by the ATLAS detector during 2012 at the CERN Large Hadron Collider. The cross section is measured in a fiducial phase-space region defined by the presence of exactly one electron and one muon, missing transverse momentum and exactly one jet with a transverse momentum above 25 GeV and a pseudorapidity of $|\eta|<4.5$. The leptons are required to have opposite electric charge and to pass transverse momentum and pseudorapidity requirements. The fiducial cross section is found to be $\sigma^{\mathrm{fid,1\textrm{-}jet}}_{WW}=136\pm6($stat$)\pm14($syst$)\pm3($lumi$)$ fb. In combination with a previous measurement restricted to leptonic final states with no associated jets, the fiducial cross section of $WW$ production with zero or one jet is measured to be $\sigma^{\mathrm{fid,}\leq\mathrm{1\textrm{-}jet}}_{WW}=511\pm9($stat$)\pm26($syst$)\pm10($lumi$)$ fb. The ratio of fiducial cross sections in final states with one and zero jets is determined to be $0.36\pm0.05$. Finally, a total cross section extrapolated from the fiducial measurement of $WW$ production with zero or one associated jet is reported. The measurements are compared to theoretical predictions and found in good agreement.

Document type :

Journal articles

Domain :

Physics [physics] / High Energy Physics - Experiment [hep-ex]

Complete list of metadatas

http://hal.in2p3.fr/in2p3-01353313
Contributor : Danielle Cristofol <>
Submitted on : Thursday, August 11, 2016 - 8:16:09 AM
Last modification on : Monday, October 22, 2018 - 9:42:01 AM

Measurement of $W^+W^-$ production in association with one jet in proton--proton collisions at $\sqrt{s} =8$ TeV with the ATLAS detector

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Measurement of $W^+W^-$ production in association with one jet in proton--proton collisions at $\sqrt{s} =8$ TeV with the ATLAS detector

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